Slush-feeding apparatus.



J. U. DIEBOLD.

SLUSH FEEDING APPARATUS. APPLIOATION FILED MAM, 1909.

(v Elm m Wilma:

UNITED STATES PATENT OFFICE.

JOHN C. DIEBOLD, OF LOUISVILLE, KENTUCKY.

SLUSH-FEEDING APPARA US.

To all whom it may concern:

Be it known that I, JOHN C. Drneonn, citizen of the United States,residing at Louisville, in the county of Jefferson and State ofKentucky, have invented new and useful Improvements in Slush-FeedingApparatus, of which the following is specification.

Myinvention has to do with the sawing of stone; and it'contemplates theprovision of a simple and easily controlled apparatus for maintainingthe supply of an adequate quantity of abrasive slushz'. 0., sharp sandand water in about the proportions of thirty per cent. of the former toseventy per cent.

of the latter, to a stone saw or gang of stone saws, and this in suchmanner that the sand or other abrasive agent is carried in a cycle andused over and over again. 1

The invention also contemplates the provision of an apparatus for thepurpose stated adapted to expeditiously start the supply of slush to'astone saw or a gang of stone saws after the saw or saws and the slushsupply apparatus have been idle for a considerable period.

With the foregoing in mind the invention will be fully understood fromthe following description and claim when the same are read in connectionwith the drawing, accompanying and forming part of this specification,in which the figure is a view, partly in elevation and partly invertical section, of the apparatus constituting the best practicalembodiment of my invention that I have as yet devised.

In carryingmy invention into effect I provide in a floor a receptacle A,preferably of concrete, which has its bottom a pitched toward its centerwhere the receptacle communicates with a well B of a length suitable toits purpose. The said well B is preferably formed by a metallic tube andmeans closing the lower end thereof, said means being, by preference, anietallic plate 1) snperposed on a plug-like body 0 of concrete or thelike.

At C the receptacle A is provided with a drain which has for its officeto .conduct the slush from the saw or saws back to the receptacle, andat D the receptacle is provided with a-Conduit designed to lead excesswater to a suitable point of discharge. It will also be noticed that atan intermediate point of its height, the receptacle is provided with aSpecification of Letters Patent.

Application-filed May 4, 1909.

Patented Mar. 28, 1911.

Serial No. 493,847.

cross bar E designed to serve a purpose hereinafter made clear.

Extending from a point adjacent the lower, closed end of the well B to asuitable point above the receptacle A is a comparatively large uprightpipe F which is open at its lower end, is entirely unobstructedthroughout its length except by the small pipe K, hereinafter described,and is designed to receive slush from the lower portion of the well B.At a point considerably above the receptacle A, the pipe F is providedwith an arm or branch pipe G designed to conduct the slush to the saw orsaws in operation, and at its upper end said pipe F is equipped with acomparatively small air eduction pipe or vent H which is designed toserve the purpose of discharging the air and in that way contribute tothe continuous and proper feed of the slush through the pipe G.

I is a pipe designed to conduct a suitable head of water from a main,elevated tank or other available and ap ropriate source of supplydirectly into the ower portion of the well B. The said pipe I is valvedat J and is designed to supply the quantity of water necessary to formin combination with the sand a proper slush. I would also have itunderstood that precedent to the starting of my novel apparatus the pipeis used to direct a head. of water downwardly in the slush which packsin the well B and lower portion of the pipe F, this with a view ofagitating and loosening the sand so as to render the same mobile. Thenwhen the supply of slush through the pipes F and G is established, thevalve J of pipe I is closed, and excess water passes off through conduitD.

K is a comparatively small pipe adapted to lead from an air compressoror other means for supplying air under pressure. The said pipe K isvalved at L, and is connected with the upper end of the slush pipe F,and from said point of connection the pipe K extends straight downinside the pipe F to a point adjacent the lower end of the latter. Thusit will be seen that after the sand is loosened by the head of water inthe manner before described, the compressed air is enabled to start andmaintain the supply of slush through the pipes F and G to the saw orsaws in operation. I show the pipe F as connected to the bar E throughthe medium of a clamp M, but it is obvious that the pipe F may bemaintained in an upright. position in any other suitable manner withoutaffecting my invention. 1 I In the practical operation of the apparatus,suflicient slush is used to assure the well B and the receptacle A beingalways filled up to the overflow conduit D'leading' from the latter,'andthe supply of airunder pressure, which supply is regulated at 'L, servesto forcethe slush up the pipe, F to the pipe G through which latter theslush passes to the saw or saws. The point of connection of pipe Gto thepipe F is in a horizontal plane above the saw or saws to afford fall forthe slush from said point, and the air under pressure escapes from thepipe F, at a point above the pipe G, and in that Wayassures acontinuousand steady flow of slush to the I saw or saws. From the saw orsaws, the

slush passes by gravity. through conduit C back into the receptacle Aand from thence gravit-ates to the lower portion of the well B precedentto being again forced up pipe F.

In starting the apparatus after a considerable period of idleness, thehead of water is supplied through pipe I to the sediment, that is packedin the lower portions of 'well B and pipe F, for two or three minutesbefore the valve L is opened to let air under As hereinbefore stated, itis essential to have the pipe F entirely unobstructed, except by thesmall pipe K, this for the reason that when the sand slush settles overnight I and'is subsequently loosened'and put in motion, it must be.moved upward through the pipe Fabefore the apparatus can be started.Having described my invention, what I claim and desire to secure byLetters-Pats cut is:

.An apparatus for the purpose described,

comprising an upright imperforate tube closed at its bottom and open atits upper end, a receptacle communicating with and constructed todischarge into the said open end of the tube, means for leading slusht'othe said receptacle, a small upright'pipe extending down into the tubeand adapted to be connected with a source of compressed air supply,'avalve connected with said pipe, a conduit smaller than the said tube andlarger than and surrounding the upright portion of the said pipe andextending down into the tube to a point adjacent the lower end thereofand below the lower end of the air-supply pipe and open at its lower endand closed at its upper end and entirely unobstructed throughout itslength except by the said small pipe, a conduit communicating with andextending laterally from the first-named conduit at an intermediatepoint in the height thereof, a comparatively small vent pipe leadingfrom the first-named'conduit at-a point abovesaid lateral conduit andadapted to discharge air and contribute to the continuous feed of slushthrough the conduits, and a valved pipe extending downwardly through thereceptacle and in the tube and alongside the first-named conduit to apoint below the lower open end thereof and adapted to direct a head ofwater down 'ward in slush collected below the lower open end of thetube, all substantially as and for the purpose set forth.

In testimony whereofI have hereunto set my hand-in presence of twosubscribing witnesses.

JOHN C. DIEBOLD.

IVitnesses:

HENRY RUEFF',

G. A. BERNDSEN.

